Recently added videos

04:49
Income and Expenditure Views of GDP
/ 148 viewsLooking at a simple model of an economy More free lessons at: http://www.khanacademy.org/video?v=Z9b8nnvpim0

07:32
Investment and Consumption
/ 127 viewsDifference between every day and economic notions of investment and consumption More free lessons at: http://www.khanacademy.org/video?v=N9VIsauE0RA

02:50
More on Final and Intermediate GDP Contributions
/ 133 viewsWhat happens when a good is not finished in a period More free lessons at: http://www.khanacademy.org/video?v=C1pHvEAKmLA

11:59
Parsing Gross Domestic Product
/ 131 viewsUnderstanding what GDP does and doesn't measure. More free lessons at: http://www.khanacademy.org/video?v=zh8XASZxo1Q

08:58
Circular Flow of Income and Expenditures
/ 178 viewsUnderstanding the flow of resources in the simplest possible economy More free lessons at: http://www.khanacademy.org/video?v=Hfz1bwK5C4o

06:18
Adding Demand Curves
/ 128 viewsHow to add demand curves More free lessons at: http://www.khanacademy.org/video?v=gHs3zuRek7o

09:02
How Many People to Hire Given the MPR curve
/ 202 viewsThinking about how many people it makes sense to hire. Brief discussion of a monopsony. More free lessons at: http://www.khanacademy.org/video?v=p8PSIpMkEvA

13:03
A Firm's Marginal Product Revenue Curve
/ 184 viewsThinking about how much incremental benefit a firm gets from hiring one more person More free lessons at: http://www.khanacademy.org/video?v=cwClnv9Y1Y0

06:01
First Degree Price Discrimination
/ 153 viewsCharging different consumers different amounts in an attempt to optimize economic profit More free lessons at: http://www.khanacademy.org/video?v=z0wg9ZPyL38

06:38
Tragedy of the Commons
/ 143 viewsHow public resources can be abused More free lessons at: http://www.khanacademy.org/video?v=0b2Tl0xniw

07:26
Positive Externalities
/ 140 viewsFactoring in external benefits More free lessons at: http://www.khanacademy.org/video?v=TSTLLFJbaA4

05:45
Taxes for Factoring in Negative Externalities
/ 168 viewsHow to factor in negative externalities through taxation More free lessons at: http://www.khanacademy.org/video?v=UYShebe44Xs

06:00
Negative Externalities
/ 158 viewsTaking negative externalities into account when thinking about the optimal equilibrium price and quantity More free lessons at: http://www.khanacademy.org/video?v=nBw6KvU51BE

09:20
Game Theory of Cheating Firms
/ 186 viewsPareto Optimality and more on Nash Equilibrium. Seeing how cheating duopolists parallels the prisoners dilemma More free lessons at: http://www.khanacademy.org/video?v=XTMbRDRaviM

11:19
Why Parties to Cartels Cheat
/ 179 viewsWhy duopolists would benefit to form a cartel and why it makes sense for them to cheat More free lessons at: http://www.khanacademy.org/video?v=S6TvRDwgQag

06:31
More on Nash Equilibrium
/ 160 viewsLooking more closely at the definition of Nash Equilibrium More free lessons at: http://www.khanacademy.org/video?v=ewu_7Dmj_18

09:21
Prisoners' Dilemma and Nash Equilibrium
/ 151 viewsWhy two notsoloyal criminals would want to snitch each other out More free lessons at: http://www.khanacademy.org/video?v=UkXIzPcDIM

08:26
Oligopolies, Duopolies, Collusion, and Cartels
/ 187 viewsThinking about when oligopolies behave more like monopolies or perfect competitors More free lessons at: http://www.khanacademy.org/video?v=N0L00FZnhtg

08:51
Monopolistic Competition and Economic Profit
/ 143 viewsWhy it is hard for a monopolisitc competitor to make economic profit in the long run More free lessons at: http://www.khanacademy.org/video?v=RUVsEovktGU

09:21
Oligopolies and Monopolistic Competition
/ 138 viewsThinking about different markets that are inbetween monopolies and perfect competition More free lessons at: http://www.khanacademy.org/video?v=PzDthFTzEa0

10:12
Review of Revenue and Cost Graphs for a Monopoly
/ 169 viewsReview of marginal revenue (MR), total revenue (TR), marginal cost (MC) and average total cost (ATC) for a monopoly

04:56
Optional Calculus Proof to Show that MR has Twice Slope of Demand
/ 157 viewsUsing some basic calculus to show that marginal revenue has twice the slope of the demand curve for a monopolist More free lessons at: http://www.khanacademy.org/video?v=atI4QH2acuw

05:57
Monopolist Optimizing Price (part 3) Dead Weight Loss.avi
/ 143 viewsShowing that what is optimal for the monopolist is not optimal for society More free lessons at: http://www.khanacademy.org/video?v=daxL1ZLrUzg

08:31
Monopolist Optimizing Price (part 2) Marginal Revenue
/ 141 viewsPlotting the marginal revenue curve for a monopolist More free lessons at: http://www.khanacademy.org/video?v=s1UQQELPyrc

07:11
Monopolist Optimizing Price (part 1) Total Revenue.
/ 144 viewsStarting to think about how a monopolist would rationally optimize profits More free lessons at: http://www.khanacademy.org/video?v=cczABrLd_uA

05:44
Monopoly Basics
/ 123 viewsThinking about what would happen with one airline. The opposite of perfect competition More free lessons at: http://www.khanacademy.org/video?v=77CApfQlTuE

10:17
Perfect Competition
/ 173 viewsConditions for perfect competition. Looking at the airline industry More free lessons at: http://www.khanacademy.org/video?v=_NznT4Cn8As

08:26
Long Term Supply Curve and Economic Profit
/ 185 viewsUnderstanding the long term supply curve in terms of economic profit More free lessons at: http://www.khanacademy.org/video?v=CWiHA5XtqgU

05:55
Marginal Revenue Below Average Total Cost
/ 135 viewsWhy it is rational to produce at a loss More free lessons at: http://www.khanacademy.org/video?v=ni0TL4pXG5w

06:10
Marginal Revenue and Marginal Cost
/ 165 viewsThinking about a rational quantity of juice to produce More free lessons at: http://www.khanacademy.org/video?v=xGkE0oHyNhk

07:40
Marginal Cost and Average Total Cost
/ 134 viewsLooking at marginal and average total cost in the context of a juice business More free lessons at: http://www.khanacademy.org/video?v=7t8gdc3YogM

12:07
Visualizing Average Costs and Marginal Costs as Slope
/ 143 viewsGraphing variable cost, fixed cost and total cost More free lessons at: http://www.khanacademy.org/video?v=k1iHDu9GrJE

11:49
Fixed, Variable, and Marginal Cost.
/ 139 viewsThinking about average fixed, variable and marginal cost More free lessons at: http://www.khanacademy.org/video?v=bBQVaRnHqLs

08:10
Depreciation and Opportunity Cost of Capital
/ 171 viewsHow to account for things when you own the building instead of renting it More free lessons at: http://www.khanacademy.org/video?v=ckBKDrKVIMU

08:06
Economic Profit vs Accounting Profit
/ 178 viewsDifference between a firm's accounting and economic profit More free lessons at: http://www.khanacademy.org/video?v=06j_zPdPWOY

05:49
Types of Indifference Curves
/ 160 viewsIndifference curves for normal goods, substitutes and perfect complements More free lessons at: http://www.khanacademy.org/video?v=kJ43GdU5Uzc

09:24
Optimal Point on Budget Line
/ 181 viewsUsing indifference curves to think about the point on the budget line that maximizes total utility More free lessons at: http://www.khanacademy.org/video?v=nhSSu0Nzs30

12:11
Budget Line
/ 133 viewsWhat I can buy with my income More free lessons at: http://www.khanacademy.org/video?v=Uq5Wzs96tiw

08:43
Deriving Demand Curve from Tweaking Marginal Utility per Dollar
/ 168 viewsSeeing what happens to quantity demanded when price changes More free lessons at: http://www.khanacademy.org/video?v=4_wQc3EGE

07:42
Equalizing Marginal Utility per Dollar Spent
/ 224 viewsWhy the marginal utility for dollar spent should be theoritically equal for the last increment of either good purchased More free lessons at: http://www.khanacademy.org/video?v=KbW6OiuRa1Y

12:15
Marginal Utility
/ 141 viewsMarginal utility and marginal benefit. How you would spend $5 on chocolate and fruit More free lessons at: http://www.khanacademy.org/video?v=Kf9KhwryQNE

06:52
Taxes and Perfectly Elastic Demand
/ 147 viewsWho bears the burden for a tax on a good with perfectly elastic demand More free lessons at: http://www.khanacademy.org/video?v=z1yJPpGC3o

07:51
Taxes and Perfectly Inelastic Demand
/ 150 viewsWho bears the burden for the taxes when demand is inelastic More free lessons at: http://www.khanacademy.org/video?v=lsn16U5DWD4

05:40
Percentage Tax on Hamburgers
/ 150 viewsWhat would happen if we have a percentage tax instead of a fixed dollar amount More free lessons at: http://www.khanacademy.org/video?v=xwOTlMaerEQ

09:06
Taxation and Dead Weight Loss
/ 159 viewsThe effect of taxation on the equilibrium price and quantity More free lessons at: http://www.khanacademy.org/video?v=NuLlNAdrom4

09:06
Minimum Wage and Price Floors
/ 181 viewsHow a minimum wage might effect the labor market More free lessons at: http://www.khanacademy.org/video?v=j0c2vmFGbtk

11:27
Rent Control and Deadweight Loss
/ 186 viewsHow instituting a price ceiling lower than the equilibrium price reduces the total surplus (dead weight loss)

08:20
Producer Surplus
/ 192 viewsLooking at the supply curve as an opportunity cost curve. Understanding the producer surplus as the area between the supply curve and the market price More free lessons at: http://www.khanacademy.org/video?v=VY5klejSg

05:46
Total Consumer Surplus as Area
/ 131 viewsLooking at consumer surplus as area between the demand curve and the market price More free lessons at: http://www.khanacademy.org/video?v=RBUBIRtn0xQ

05:02
Consumer Surplus Introduction
/ 154 viewsConsumer surplus as difference between marginal benefit and price paid More free lessons at: http://www.khanacademy.org/video?v=_6kwhF6hoqQ

05:53
Demand Curve as Marginal Benefit Curve
/ 177 viewsThinking about a demand curve in terms of quantity driving price More free lessons at: http://www.khanacademy.org/video?v=KrkbbRxdDZ8

06:54
Elasticity and Strange Percent Changes
/ 123 viewsWhy we calculate percent changes in a strange way when calculating elasticities More free lessons at: http://www.khanacademy.org/video?v=fUxSB3yYIbs

09:33
Elasticity of Supply
/ 149 viewsThinking about elasticity of supply More free lessons at: http://www.khanacademy.org/video?v=AAWsuFXojgo

11:20
Cross Elasticity of Demand
/ 131 viewsPrice of one good effecting quantity demanded of another More free lessons at: http://www.khanacademy.org/video?v=Ngv0Be9NxAw

08:25
More on Total Revenue and Elasticity
/ 164 viewsClarification on the relationship between total revenue and elasticity More free lessons at: http://www.khanacademy.org/video?v=KgrLUQYgIJE

11:41
Total Revenue and Elasticity
/ 127 viewsThinking about how total revenue and elasticity are related More free lessons at: http://www.khanacademy.org/video?v=Udltkvm9HLc

04:37
Constant Unit Elasticity
/ 161 viewsWhat a demand curve with constant unit elasticity would look like More free lessons at: http://www.khanacademy.org/video?v=m7qXvQvWlY4

09:41
Perfect Inelasticity and Perfect Elasticity of Demand
/ 179 viewsExtreme examples of price elasticity of demand More free lessons at: http://www.khanacademy.org/video?v=6udRtn5jSWk

06:01
More on Elasticity of Demand
/ 182 viewsLooking a bit deeper at why elasticity changes despite having a linear demand curve More free lessons at: http://www.khanacademy.org/video?v=YOT8ryWzwbY

13:17
Price Elasticity of Demand
/ 157 viewsIntroduction to price elasticity of demand More free lessons at: http://www.khanacademy.org/video?v=slP8XZ6Nq40

09:05
Changes in Market Equilibrium
/ 154 viewsHow the equilibrium price or quantity might change due to changes in supply or demand More free lessons at: http://www.khanacademy.org/video?v=NgPqyM3I_8o

10:17
Market Equilibrium
/ 238 viewsEquilibrium price and quantity for supply and demand More free lessons at: http://www.khanacademy.org/video?v=PEMkfgrifDw

06:58
Factors Affecting Supply
/ 159 viewsHow the price of inputs, price of related goods, number of suppliers technology, and expected future prices affects the supply curve More free lessons at: http://www.khanacademy.org/video?v=0isM0GFrMI

08:24
Law of Supply
/ 148 viewsIntroduction to the Law of Supply More free lessons at: http://www.khanacademy.org/video?v=3xCzhdVtdMI

05:19
Inferior Goods Clarification
/ 148 viewsMore clarification on inferior and normal goods More free lessons at: http://www.khanacademy.org/video?v=TAhRoJB34nw

05:56
Normal and Inferior Goods
/ 175 viewsHow the demand for some goods could actually go down if incomes go up More free lessons at: http://www.khanacademy.org/video?v=wYuAwm5Bk

03:33
Changes in Income, Population, or Preferences
/ 176 viewsHow demand can be effected by changes in income, population or preferences More free lessons at: http://www.khanacademy.org/video?v=do1HDIdfQkU

05:48
Price of Related Products and Demand
/ 136 viewsHow changes in the price of related goods can shift demand More free lessons at: http://www.khanacademy.org/video?v=oClpRv7msg

08:16
Law of Demand
/ 125 viewsExample of the law of demand More free lessons at: http://www.khanacademy.org/video?v=ShzPtU7IOXs

10:16
Comparative Advantage and Absolute Advantage
/ 170 viewsShowing that a party benefits from trade as long as there is a comparative advantage (and not necessarily an absolute advantage) More free lessons at: http://www.khanacademy.org/video?v=xN3UV5FsBkU

08:56
Comparative Advantage Specialization and Gains from Trade
/ 159 viewsHow two parties can get better outcomes by specializing in their comparative advantage and trading More free lessons at: http://www.khanacademy.org/video?v=xx9xNJlPOJo

07:55
Economic Growth through Investment
/ 142 viewsHow investing for capital formation can expand the production possibilities frontier (PPF) More free lessons at: http://www.khanacademy.org/video?v=a9aUMpGs6c8

14:10
Allocative Efficiency and Marginal Benefit
/ 185 viewsMarginal Utility and maximization More free lessons at: http://www.khanacademy.org/video?v=MT4akJsAmb0

06:26
Increasing Opportunity Cost
/ 244 viewsWhy the opportunity cost may increase as you pursue more rabbits More free lessons at: http://www.khanacademy.org/video?v=00fgAG6VrRQ

05:49
Opportunity Cost
/ 205 viewsOpportunity cost (and marginal cost) based on the PPF More free lessons at: http://www.khanacademy.org/video?v=pkEiHZAtoro

10:59
Production Possibilities Frontier
/ 151 viewsTradeoffs for a hunter gatherer and the production possibilities frontier. Ceteris Paribus More free lessons at: http://www.khanacademy.org/video?v=_7VHfuWVQg

01:35
Adding subtracting mixed numbers 0.5 (ex 1)
/ 196 viewsAdding subtracting mixed numbers 0.5 (ex 1) More free lessons at: http://www.khanacademy.org/video?v=EGy1W24EPEI

02:31
Adding subtracting mixed numbers 0.5 (ex 2)
/ 183 viewsAdding subtracting mixed numbers 0.5 (ex 2) More free lessons at: http://www.khanacademy.org/video?v=q19UnHEofOA

02:21
Adding subtracting mixed numbers 1 (ex 1)
/ 152 viewsAdding subtracting mixed numbers 1 (ex 1) More free lessons at: http://www.khanacademy.org/video?v=8Eb5MWwcMMY

02:31
Adding subtracting mixed numbers 1 (ex 2)
/ 210 viewsAdding subtracting mixed numbers 1 (ex 2) More free lessons at: http://www.khanacademy.org/video?v=_btQus9HV_I

02:33
Adding fractions (ex 1)
/ 170 viewsAdding fractions (ex 1) More free lessons at: http://www.khanacademy.org/video?v=TuId1spuyoc

02:13
Multiplying Fractions Word Problems (ex 1)
/ 157 viewsMultiplying Fractions Word Problems (ex 1)

02:06
Converting mixed numbers and improper fractions (ex 1)
/ 157 viewsConverting mixed numbers and improper fractions (ex 1)

02:07
Converting mixed numbers and improper fractions (ex 2)
/ 171 viewsConverting mixed numbers and improper fractions (ex 2)

01:31
Subtracting fractions with common denominators (ex 1)
/ 151 viewsSubtracting fractions with common denominators (ex 1)

02:27
Polyalphabetic Cipher
/ 212 viewsCreating a lighter fingerprint with a more intricate wordbased cipher More free lessons at: http://www.khanacademy.org/video?v=BgFJD7oCmDE

02:37
Caesar Cipher
/ 192 viewsThe Caesar Cipher More free lessons at: http://www.khanacademy.org/video?v=sMOZf4GN3oc

02:09
Frequency Stability
/ 191 viewsCan humans generate truly random sequences More free lessons at: http://www.khanacademy.org/video?v=vVXbgbMp0oY

03:52
The Fundamental Theorem of Arithmetic
/ 173 viewsThe Fundamental Theorem of Arithmetic More free lessons at: http://www.khanacademy.org/video?v=8CluknrLeys